湖北某低品位高镁质磷矿反浮选试验研究  

Study on Reverse Flotation of Low Grade Phosphate Ore with High Magnesium in Hubei Province

作　　者：黄鹏 张凡 李洪强 贾正勋 刘爽 鲁力 康健 李健 HUANG Peng;ZHANG Fan;LI Hongqiang;JIA Zhengxun;LIU Shuang;LU Li;KANG Jian;LI Jian(Hubei Province Geological Experimental Testing Center,Wuhan 430034,Hubei,China;Key Laboratory of Rare Mineral,MNR,Wuhan 430034,Hubei,China;The Seventh Geological Brigade of Hubei Geological Bureau,Yichang 443100,Hubei,China;Wuhan Institute of Technology,Wuhan 430205,Hubei,China)

机构地区：[1]湖北省地质实验测试中心,湖北武汉430034 [2]自然资源部稀土稀有稀散矿产重点实验室,湖北武汉430034 [3]湖北省地质局第七地质大队,湖北宜昌443100 [4]武汉工程大学,湖北武汉430205

出　　处：《矿产保护与利用》2023年第2期138-141,共4页Conservation and Utilization of Mineral Resources

摘　　要：湖北某低品位沉积型磷矿石含P_(2)O_(5)21.08%,MgO含量较高,主要矿物为胶磷矿、氟磷灰石、白云石。为了使该矿得到有效的开发利用,开展了反浮选试验研究,确定了合适的药剂制度和闭路工艺流程。试验结果表明,以脂肪酸类MG为捕收剂、磷酸作为抑制剂,采用一次粗选、两次精选、中矿集中处理的单一反浮选流程对该矿进行选别,闭路试验可以得到P_(2)O_(5)品位为31.12%、P_(2)O_(5)回收率为88.79%优质磷精矿。A sedimentary phosphate ore in Hubei contains a low grade P_(2)O_(5) of 21.08%and high magnesium,with collophanite,fluorapatite and dolomite as its main compositions.In order to utilize the low grade phosphate ore,the reverse flotation experimental study was carried out.the proper agent regime and the closed circuit process flowsheet was investigated.The results showed that the phosphor concentrate with P_(2)O_(5) grade of 31.12%and recovery of 88.79%was obtained using MG as collector and phospsoric acid as depressant via the closed-circuit flowsheet of“one roughing-two cleaning,handling of the middlings together”.

关 键 词：胶磷矿 高镁 反浮选 

分 类 号：TD971.3[矿业工程—选矿] TD923